Joan Aitken, traffic commissioner for Scotland, thanked the Record for highlighting the case on the busy Edinburgh-Glasgow Citylink service.

She also applauded the quick-thinking passenger who videoed the driver.

Her spokesman said: “The traffic commissioner takes passenger safety very seriously. She can consider taking action against the professional licences held by bus drivers where there are adverse reports about their conduct.

“Miss Aitken asks that the travelling public contact her office if they see any driver behaviour which risks the safety of passengers.”

Video Loading

Video Unavailable

Click to playTap to play

The video will start in 8Cancel

Play now

The witness filmed the driver last November 14. We sent Citylink the footage.

Their spokeswoman said: “This service was operated by a contractor on our behalf. We have passed the footage to the company who are undertaking their own disciplinary investigation.

“We have been assured the driver will not be employed on our behalf in the future.”